| Researcher(s) |
Max Bloomfield Daniel Bosveld Nick Poole Aaron Vague Darcy Warren |
|---|---|
| Year(s) | 2022 |
| Contributor | Field Applied Research (FAR) Australia |
| Trial location(s) |
Gnarwarre, VIC
|
To assess the value of PGRs with delayed harvest in HRZ regions.
• Conducted in the winter barley variety Pixel, there was no interaction between harvest date and PGR management for grain harvest.
• There was significantly more lodging when the harvester returned 19 days after the first on-time harvest date.
• Where a split application recorded the lowest amount of lodging at the first harvest timing, it was significantly more lodged compared to the other PGR managements at harvest date 2.
• Ethephon (Promote 1000), a much more robust growth regulant when applied at the later GS37 timing, was the most successful management when used in conjunction with Moddus Evo at GS31 by reducing lodging at the second harvest date as well as crop height (Figure 1).
• In relation to brackling and head loss, although there was no interaction with PGR management, it was found that there were increased levels of both at the later harvest date.
Trial design: Factorial
Variety: Pixel
Rotation position: 2021 Faba Beans
Soil type: Grey clay loam
Colwell P (ppm) 0-10cm: 110.0
pH (CaCl2) 0-10cm: 5.0
Organic Carbon (%) 0-10cm: 2.4
| Lead research organisation |
Field Applied Research (FAR) Australia |
|---|---|
| Host research organisation |
Field Applied Research (FAR) Australia |
| Trial funding source | GRDC FAR2004-002RTX |
| Related program | N/A |
| Acknowledgments | N/A |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Barley |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated |
| Sow rate or Target density | 180 seeds/m2 |
|---|---|
| Sow date | 28 April 2022 |
| Harvest date | 20/12/2022; 8/01/2023 |
| Trial design method | O Other |
| Trial design arrangement | 8 rows x 4 cols |
| Total plots | 32 |
| Plot size | Not specified |
| Plot replication | 4 |
| Psuedoreplication | N |
| Plot randomisation | Y |
| Fertiliser |
Basal fertiliser: 28 April- 100 kg MAP (10 N) 5 September- 217 kg Urea (100 N) |
| Fungicide |
30 September- Prosaro 300 mL/ha |
| Seed treatment | Systiva |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
